Title:
Window construction
United States Patent 2226274
Inventors:
Winship, Edward J.
Publication Date:
12/24/1940
Export Citation:
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Assignee:
PITTSBURGH CORNING CORP
Primary Class:
49/65
Other Classes:
49/67, 49/109, 49/495.1
International Classes:
E06B3/50; E06B3/32
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